Damming attachment for cultivators



March 12, 1940. J, E. ERICKSON y DAMMING -ATTACHMENT FOR CULTIVATORSFiled' Jan. 23, 1939 1 5` equipment in use. n i L and the bars I2 areconnected to a transverse 16 Another object of the invention is toprovide angle iron I3, the lower carrying a plurality of a dammingapparatus which can be easily incorrelatively broad shovels I4. It willbe noted porated with the conventionall type of eld culin Fig. 1 thatthe shovels I4 are disposed ditivator` during its manufacture orafterwards as rectly `behind the cultivator shovels I-I in the Q0 anattachment thereto. `front row of the normalcultivator gang. and that 20y 40 crank shaped axles. A V-shaped draw bar 'I quently, rotation of thedrive wheel and the cam 40 45 otally secured to the forward member 9 isa With raising of the main cultivator assembly 45 50 diagonal armsIllr,l which extend upwardly and raises the SamerSad level' Will PVO at'GS point 50 Patented Mar. 12, 1940 2,193,065

UNITED STATES PATENT OFFICE DAMMING ATTACHMENT `FOR oUL'HvAToRs John E.Erickson, East Grand Forks, Application January 23, 1939, Serial No.252,276 l `5 claims. "(cl. sar- 55) `This invention relates -toapparatusfor conto make furrows andY the` rear row` of shovels serving moistureinl fields and preventing erosion forms other furrowsand provides hillsin place by wind and water. `of the furrows made by the shovels in thefront Recently there has been developed a' practice.` row. A lever` IOcextends rupwardly from the IA of moisture and soil conservation inconnection n squared cross member VIIIc and` a rope or cable 5, with thecultivation of ylelds which comprises `Ii4 leads forwardly to thetractorto which the generally the formation ofl furrows and thecultivator 'is hitched. When the rope is pulled damming of said furrowsto prevent the running forward, the arms IIJd will be pulled up andtheoff of moisture. y springs Illa` will raise the arms I 0 andthe cul- Itis an object 0f my invention to provide an tivator shovels I I. Thesprings are provided to 10 automatic damming attachment `for useparyieldably support these shovels. n p ticularly with field cultivatorsand tillers, which A pair of bars I2 are secured to and extend is simplyconstructed and more cheaply manu rearwardly from the ends of twoof therearwardfactured than most other types of automatic v 1y extendingelements IIJ, as best shown in Fig. 1,

These and other objects and advantages will the shovelsy I4 lie on linesbetween the paths of be more apparent from the following descriptionmovement of the shovels'inthe rearrow of the made in connection with theaccompanying drawusual field cultivator elements. vA pair of rods ing,wherein.. like referenceA characters refer to `I5 are secured at theirlower ends to opposite the same parts throughout the several views, andends of the transverse angle iron I3, and they 25 in which: v connectbymeans of a` chain I6 `to the rear end of l Fig. 1 is a plan view of aeld cultivator with a damming shovel operating lever I'I. Said lemyinvention incorporated therewith; ver isprovi'ded with a plurality ofholes I8 to Fig. 2 is a side elevation thereof; and permit adjustment ofthe height of the damming Fig. 3 is a detail of the operating cam with ashovels I4. An intermediate portion lof the lever 304 portion thereofbroken away.` i Il rests in the track I9 of a cam 20. It will be InFigs. 1 and Z'the eld cultivator is shown noted from Fig. 3 that theface of the cam upon having a main cross' bar 4 upon the ends of whichywhich the lever I'I restsfis flattened as at ZI to are mounted stubaxles 5 which are supported `impart a vertical reciprocating movement tosaid on wheels E. `It will be noted that the medial lever I1. The cam 20is mounted upon a shaft 35 portions of the stub axles are bent toprovide 22 which extends t0 one Side ofthe machine and crank-likeelements, and in the usual cultivator carries a sprocket 23 on its end.The sprocket means is provided for raising. and lowering the 23 isdriven by a chain 24 which in turn is driven frame with respect to thewheels by means of the by a sp-rocket25 on one of the wheels 6.Conseextends forwardly of the frame, and said draw 20 producesoscillation of the lever I1 vertically bar is provided with a drafthitch `Il. A cross and a similar movement of the damming shovel member eextends'across the apparatus in front assembly which comprises thetransverse angle of the rst mentioned cross member 4, and piv- `iron I3and the damming shovels I 4. plurality of bars IIJ, each of which hasSecured relative to the Wheels, I provide a lever 26 which thereto ashovel II. The bars I0 are connected carries a shoe 27, the latter beingpositioned by springs Illa: to arms I 0b which are secured to a beneaththe cam operated lever IT. When the square cross member Ic, which issupported by shoe engages the under side of the lever and rearwardlyfrom the cross member 9. It will of connection '28. Where it is securedto a lug 29 bevnoted that the shovels are disposed in two at the centerof the forward transverse frame transverse rows, and that the shovels inone element 9. Furthermore, the damming shovel row are staggered withrespect to those in the assembly can be raised due to the pivotalconother row. The forward shovels are adapted nection 30 between therearwardly extending bars 55 v l2 and their cooperating cultivatorshovel supports I0.

When the device is moved across a eld, the first two rows of shovels Ilwhich are the usual eld cultivator `elen'ientscreate ridges and fur-`rows, and the damming shovels I4, when lowered by action of the cam 20,dig into the ridges between the furrows splitting the ridges and causingthe earth of the ridges to fall in and dam spaced portions of thefurrovvs.v In'other types of camming machinery the dan-lining shovelsrun in the furrows and must pile up a considerable quantity of dirtahead of them to efficiently close o'f the furrows. With my arrangement,however, the damming shovels operate on lthe ridges between the furrowsand split the earth in the ridges laterally in two directions to make aneflicient dam without digging deeply into the soil.

This requires a great deal less power than some other type-s lof dammingattachments such as those which are used with listers and whichpene-`said cultivator and positioned in line with the shovels of the forwardrow of cultivator elements, a'l lever pivotally connected to saidcultivator for verticall movement with respect thereto and connected to.said darnming shovels; cam mechanism supporting said lever, and meansfor rotating said cam to elevate and lower said lever and said dammingshovels.

2. The structure in claim l, and means for raising said damming shovelsand maintaining them out of contact Withthe ground.

3. In a wheel supported cultivator, a plurality of rows of cultivatorelements disposed transversely of the device, thercultivator elements ofone row being staggered with respect to the cultivator elements ofanother row, a damming attachment comprising, a plurality of dammingshovels assembled for movement as a unit, said assembly being pivotallysecured to said cultivator, the shovels of said damming assembly lyingalong lines between the rear cultivator elements, and a'verticalreciprocating drive connection between one of said wheels and saiddamming shovel assembly for alternately raising and lowering saiddamming elementsvwith respect to the ground.

4. In a wheel supported cultivator, a row of cultiva'tor elementsdisposed across the cultivator, a damming attachment comprising anassembly of dan'xrrningv shovels p-ivotally secured to said Culy.tivatonthe shovels of said damming assembly lying along lines between thecultivator elements,

Aand vertically oscillating drive means connected to said damniingshovelassembly for alternately raising and lowering said damming elements withrespect to the ground.

5. In a cultivator or the like,Y a plurality of cultivating elements forforming alternate rows of ridges and furrows, a plurality of dammingshovels lying along lines between the cultivator elements, and means forperiodically raising and lowering said damming shovels, whereby saidshovels will at spaced points split the ridges formed by said cultivatorelements to dam adl jacent portions of the furrows.

JOHN E. ERICKSON.

